AKS: Emit Container Insights and monitoring Bicep

## Problem
`WithContainerInsights()` and `WithAzureLogAnalyticsWorkspace()` exist as APIs on `AzureKubernetesEnvironmentResource` but the Bicep generation does not emit the necessary Azure resources.

## Missing Bicep
- `addonProfiles.omsagent` configuration with Log Analytics workspace ID
- `azureMonitorProfile.metrics.enabled` for managed Prometheus
- Data collection rules for container insights
- Optional Application Insights OTLP integration

## Current state
The extension methods set `ContainerInsightsEnabled` and `LogAnalyticsWorkspace` properties, but `GenerateAksBicep()` does not read them.

## Related
Part of AKS hosting support (PR #16088)